Finding the Fourth Proportional to 139,368.30, 192,323.82 and 78,944.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139,368.30 : 192,323.82 = 78,944.52 : x
2. Step 2: Convert to fraction form
   139,368.30/192,323.82 = 78,944.52/x
3. Step 3: Cross multiply
   139,368.30x = 192,323.82 × 78,944.52
4. Step 4: Simplify right side
   139,368.30x = 15,182,911,654.47
5. Step 5: Solve for x
   x = 15,182,911,654.47/139,368.30
6. Step 6: Final answer
   x = 108,940.93